Welcome to "Pot Metal"
Welcome to the world of "Pot Metal". The only "true" way to fix your problem would be to send the logos off to a chrome shop to be reworked and chromed, then if I remember, the flat spot along the outside edge was painted blue. So in the end you would have the name "International" in chrome, outlined in blue paint, outlined in chrome again along the outer edge. Not sure on the price, but I'd say about $250.00 or so depending how bad they are pitted. If you plan to go this route, look at "Hemmings Motor News" you will find lots of places that offer this service. Be careful pulling them off. I think they have tabs that can only be access from the inside, like the old logos on the 60's/70's era cars. I could be wrong on this, but I don't think I am.
Now you just have to ask yourself, is it worth it?
WDCU 1stVP (to be impeached)